MT46V64M8P-5B 데이터 시트보기 (PDF) - Micron Technology
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MT46V64M8P-5B Datasheet PDF : 91 Pages
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512Mb: x4, x8, x16 DDR SDRAM
Operations
Figure 55: Power-Down Mode
CK#
CK
CKE 1
Command
Address
DQS
DQ
DM
T0
T1
T2
Ta0
((
))
((
tCK
tCH
tCL ) )
tIS tIH
tIS
tIS tIH
Valid2
NOP
tIS tIH
Valid
Enter 3
power-down
mode
((
))
((
))
((
))
((
))
((
))
((
))
((
))
((
))
((
))
((
))
((
))
tREFC
Ta1
Ta2
tIS
NOP
Valid
Valid
Exit
power-down
mode
Don’t Care
Notes:
1. Once initialized, VREF must always be powered within the specified range.
2. If this command is a PRECHARGE (or if the device is already in the idle state), then the
power-down mode shown is precharge power-down. If this command is an ACTIVE (or if at
least one row is already active), then the power-down mode shown is active power-down.
3. No column accesses are allowed to be in progress at the time power-down is entered.
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This data sheet contains minimum and maximum limits specified over the power supply and temperature range set forth herein. Although
considered final, these specifications are subject to change, as further product development and data characterization sometimes occur.
PDF: 09005aef80a1d9d4/Source: 09005aef82a95a3a
DDR_x4x8x16_Core2.fm - 512Mb DDR: Rev. N; Core DDR Rev. B 2/09 EN
91
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